Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
권호 표지
DOI QR코드

DOI QR Code

A Feasibility Study on Estimation of the Deformation of Rubber Bush in Vehicles Using Acceleration and Displacement Signals on the Links

가속도계 및 변위계를 이용한 차량용 고무부시의 변형량 추정 가능성 연구

  • Received : 2016.08.30
  • Accepted : 2016.11.23
  • Published : 2016.12.20
Download PDF
⟨ Previous Next ⟩

Abstract

Ride comfort of a vehicle is often determined by rubber bushes in suspension system. If transmission forces versus deformations across the bushes are available under operational conditions, improvement of the ride comfort could be done with more ease. Recently, the transmission forces are measured using custom-made force transducers inside the links. This study presents a feasibility study on estimation of the rubber bush deformations using vibration signals on the rigid links. Linear variable displacement transducers as well as piezoelectric accelerometers are used to expand frequency range to very low frequency, which cannot be done with accelerometers only. How to estimate the bush deformation from the two vibration signals on the links are presented together with experimental results.

Keywords

References

  1. Wahbeh, A. Mazen, J. P. C. and Sami, F. M., 2003, A Vision-based Approach for the Direct Measurement of Displacements in Vibrating Systems, Smart Materials and Structures, Vol. 12, No. 5, pp. 785-794. https://doi.org/10.1088/0964-1726/12/5/016
  2. Chae, C. G. and Kim, K. J., 1996, Identification of Transmission Forces through Rubber Bushings in Suspension System by Using Vibration Signals Measured on Links, Master's Thesis, DME KAIST.
  3. ISO 2041:2009.
  4. Song, S. H. and Kim, K. J., 2016, A Feasibility Study on Estimation of the Deformation of Rubber Bush in Vehicles Using Acceleration and Displacement Signals on the Links, Master's Thesis, DME KAIST.
  5. Trefethen, L. N. and David, B. III, 1997, Numerical Linear Algebra, Siam., Philadelphia, pp. 94-95
  6. Chae, C. G. and Kim, K. J., 2001, A Study on Indirect Identification of Transmission Forces Through Rubber Bushing in Vehicle Suspension System Under Driving Condition by Using Vibration Signals Measured on Link and Car Body, Ph.D Dissertation, DME KAIST.
  7. Blundell, M. V., 1998, The Influence of Rubber Bush Compliance on Vehicle Suspension Movement, Materials & Design, Vol. 19, No. 1, pp. 29-37. https://doi.org/10.1016/S0261-3069(97)00101-5
  8. Jeon, H. M., Bang, Y. S. and Myung, H., 2011, A Paired Visual Servoing System for 6-DOF Displacement Measurement of Structures, Smart Materials and Structures, Vol. 20, No. 4, pp. 1-16.
  9. Song, S. H. and Kim, K. J., 2015, Estimation of Rubber Bush Deformation Using Acceleration and Displacement Signals on Rigid Links in Vehicle Suspension System, Proceedings of the KSNVE Annual Autumn Conference, pp. 141-147.
  10. Jung, M. K., Kim, K. S. and Kim, K. J., 2006, A Study on Determination of Complex Stiffness of Frame Bush for Ride-comfort Improvement of Body-on-frame Vehicle, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 16, No. 6, pp. 619-626. https://doi.org/10.5050/KSNVN.2006.16.6.619